/usr/share/octave/packages/geometry-1.7.0/geom3d/drawEdge3d.m is in octave-geometry 1.7.0-1build1.
This file is owned by root:root, with mode 0o644.
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## Copyright (C) 2004-2011 INRA - CEPIA Nantes - MIAJ (Jouy-en-Josas)
## Copyright (C) 2012 Adapted to Octave by Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
## All rights reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are met:
##
## 1 Redistributions of source code must retain the above copyright notice,
## this list of conditions and the following disclaimer.
## 2 Redistributions in binary form must reproduce the above copyright
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## -*- texinfo -*-
## @deftypefn {Function File} {@var{h} =} drawEdge (@var{edge})
## Draw 3D edge in the current Window
##
## draw the edge EDGE on the current axis. EDGE has the form:
## [x1 y1 z1 x2 y2 z2].
## No clipping is performed.
##
## @end deftypefn
function varargout = drawEdge3d(varargin)
# extract edges from input arguments
nCol = size(varargin{1}, 2);
if nCol==6
# all parameters in a single array
edges = varargin{1};
options = varargin(2:end);
elseif nCol==3
# parameters are two points, or two arrays of points, of size N*3.
edges = [varargin{1} varargin{2}];
options = varargin(3:end);
elseif nCol==6
# parameters are 6 parameters of the edge : x1 y1 z1 x2 y2 and z2
edges = [varargin{1} varargin{2} varargin{3} varargin{4} varargin{5} varargin{6}];
options = varargin(7:end);
end
# draw edges
h = line( [edges(:, 1) edges(:, 4)]', ...
[edges(:, 2) edges(:, 5)]', ...
[edges(:, 3) edges(:, 6)]', 'color', 'b');
# apply optional drawing style
if ~isempty(options)
set(h, options{:});
end
# return handle to created Edges
if nargout>0
varargout{1}=h;
end
endfunction
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